Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
16,819 results · page 3 of 337
Oct 13, 2026Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.CVE-2026-97821 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.CVE-2026-97820 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.CVE-2026-97819 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in DNS Server allows an authorized attacker to disclose information over a network.CVE-2026-97817 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Heap-based buffer overflow in DNS Server allows an authorized attacker to disclose information over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.CVE-2026-97816 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Use after free in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.CVE-2026-97815 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network.CVE-2026-97814 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Heap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information over a network.CVE-2026-97813 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information over a network.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Double free in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.CVE-2026-97812 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Double free in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Double free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.CVE-2026-97811 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Double free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.CVE-2026-97810 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.CVE-2026-97809 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.CVE-2026-97808 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.CVE-2026-97807 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.CVE-2026-97806 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network.CVE-2026-97805 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in HID class driver allows an authorized attacker to elevate privileges locally.CVE-2026-97804 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in HID class driver allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-97803 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 version 26H1
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Incorrect permission assignment for critical resource in Windows Mobile Broadband allows an authorized attacker to elevate privileges locally.CVE-2026-97800 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Incorrect permission assignment for critical resource in Windows Mobile Broadband allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper verification of cryptographic signature in Windows Audio Service allows an authorized attacker to elevate privileges locally.CVE-2026-97799 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper verification of cryptographic signature in Windows Audio Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper neutralization of argument delimiters in a command ('argument injection') in Windows Error Reporting allows an authorized attacker to elevate privilegeCVE-2026-97798 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper neutralization of argument delimiters in a command ('argument injection') in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.CVE-2026-97794 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 version 23H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Missing authentication for critical function in Windows Setup and Deployment allows an authorized attacker to elevate privileges locally.CVE-2026-97793 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Missing authentication for critical function in Windows Setup and Deployment allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.CVE-2026-97792 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 version 23H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to peCVE-2026-97790 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to perform tampering locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.CVE-2026-97789 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Container Isolation FS Filter Driver (unionfs.sys) allowsCVE-2026-97787 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 version 23H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Null pointer dereference in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to execute code locally.CVE-2026-96953 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Null pointer dereference in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to execute code locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.CVE-2026-96952 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Microsoft Windows Command Injection VulnerabilityCVE-2026-96951 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 8.8
Microsoft Windows Shell contains a command injection vulnerability that allows an unauthorized attacker to bypass a security feature over a network.
- Product
- Windows
- On CISA’s list since
- Oct 13, 2026 (federal fix deadline Oct 16, 2026)
- What to do
- Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogmsrc.microsoft.comcisa.gov
Oct 13, 2026Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.CVE-2026-96950 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.CVE-2026-96949 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Exposure of sensitive information to an unauthorized actor in Windows Client Side Caching driver (csc.sys) allows an authorized attacker to disclose informationCVE-2026-96948 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Exposure of sensitive information to an unauthorized actor in Windows Client Side Caching driver (csc.sys) allows an authorized attacker to disclose information locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.CVE-2026-96947 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.CVE-2026-96946 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Uncaught exception in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.CVE-2026-96945 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Uncaught exception in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.
- Product
- Windows Server 2019
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Insertion of sensitive information into externally-accessible file or directory in Windows Storage allows an authorized attacker to disclose information locallyCVE-2026-96944 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Insertion of sensitive information into externally-accessible file or directory in Windows Storage allows an authorized attacker to disclose information locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Integer overflow or wraparound in Windows Raw Image Extension allows an unauthorized attacker to execute code over a network.CVE-2026-96943 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Integer overflow or wraparound in Windows Raw Image Extension allows an unauthorized attacker to execute code over a network.
- Product
- Raw Image Extension
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Time-of-check time-of-use (toctou) race condition in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.CVE-2026-96939 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Time-of-check time-of-use (toctou) race condition in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 version 23H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Distributed File System (DFS) allows an authorized attacker to elevate privileges locally.CVE-2026-96938 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.7
Heap-based buffer overflow in Windows Distributed File System (DFS) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.CVE-2026-96937 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Exposure of sensitive system information to an unauthorized control sphere in Windows NTFS allows an authorized attacker to disclose information locally.CVE-2026-96935 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Exposure of sensitive system information to an unauthorized control sphere in Windows NTFS allows an authorized attacker to disclose information locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.CVE-2026-96934 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Untrusted pointer dereference in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.CVE-2026-96933 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Untrusted pointer dereference in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Embedded Mode Service allows an authorized attacker to elCVE-2026-96932 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Embedded Mode Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Untrusted pointer dereference in Windows NTFS allows an authorized attacker to elevate privileges locally.CVE-2026-96931 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Untrusted pointer dereference in Windows NTFS allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to disclose information locally.CVE-2026-96930 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to disclose information locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-96929 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.CVE-2026-96928 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.CVE-2026-96927 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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